CN114349927B - Polyurethane heat-insulating sound-insulating material for rolling gate and preparation method thereof - Google Patents

Polyurethane heat-insulating sound-insulating material for rolling gate and preparation method thereof Download PDF

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CN114349927B
CN114349927B CN202111637042.2A CN202111637042A CN114349927B CN 114349927 B CN114349927 B CN 114349927B CN 202111637042 A CN202111637042 A CN 202111637042A CN 114349927 B CN114349927 B CN 114349927B
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sound
polyether polyol
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polyurethane heat
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CN114349927A (en
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刘玄
马海晶
王乐义
户平峰
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Shandong Inov New Material Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/6696—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/36 or hydroxylated esters of higher fatty acids of C08G18/38
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    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/36—Hydroxylated esters of higher fatty acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/101—Esters; Ether-esters of monocarboxylic acids
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
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    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
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    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/18—Binary blends of expanding agents
    • C08J2203/184—Binary blends of expanding agents of chemical foaming agent and physical blowing agent, e.g. azodicarbonamide and fluorocarbon
    • C—CHEMISTRY; METALLURGY
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    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
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Abstract

The invention belongs to the technical field of polyurethane foam plastic synthesis, and particularly relates to a polyurethane heat-insulation sound-insulation material for a rolling gate and a preparation method thereof, wherein the polyurethane heat-insulation sound-insulation material adopts polyether polyol, epoxidized soybean oil polyol, a flame retardant, a physical foaming agent, a catalyst, a chemical foaming agent, a foam stabilizer and a viscosity reducer as a component A; polymethylpolyphenyl polyisocyanates as component B; the component A comprises the following components in percentage by mass: and (3) mixing and pouring the component B with the ratio of 1:1-1.5. According to the polyurethane heat-insulating sound-insulating material for the rolling gate, the epoxidized soybean oil polyol and the EO-capped polyether polyol are introduced into the formula, so that the polyurethane foaming material is not crisp at low temperature, and the polyurethane heat-insulating sound-insulating material has the characteristics of good fluidity, flame retardance and light weight. Polyurethane material fills in the shutter door sheet cavity, does not change the original outward appearance of shutter and usage space, easy operation improves the heat preservation thermal-insulated sound insulation effect of shutter, reduces the whole energy consumption of building.

Description

Polyurethane heat-insulating sound-insulating material for rolling gate and preparation method thereof
Technical Field
The invention belongs to the technical field of polyurethane foam plastic synthesis, and particularly relates to a polyurethane heat-insulation sound-insulation material for a rolling gate and a preparation method thereof.
Background
The rolling shutter door is also called as rolling shutter door, which is characterized by that several articulated door sheets are connected together in series, and in the fixed slideway, the upper portion of the door is used as centre, and the upper portion and lower portion of the door are rotated. The door body structure is widely applied to a door body structure with a wider closing width or a door body structure unsuitable for arranging a conventional rotating structure due to good opening and closing performance.
The energy saving of the building is one of important links related to the construction of low-carbon economy, the completion of energy saving and emission reduction targets and the sustainable development of economy in China, and the rolling gate is taken as a main component of the building, has an important effect on the energy saving of the building, and the conventional rolling gate is mainly made of metal materials, has poor heat insulation and sound insulation effects and cannot meet the requirements of energy saving and comfort.
Disclosure of Invention
The invention aims to solve the technical problems that: the polyurethane heat-insulating and sound-insulating material for the rolling gate and the preparation method thereof are provided, the polyurethane material is filled in the cavity of the rolling gate door sheet, the heat-insulating and heat-insulating effect of the rolling gate can be greatly improved on the premise of not changing the original appearance and the use space of the rolling gate, and meanwhile, the polyurethane heat-insulating and sound-insulating material has the characteristics of light weight and good sound-insulating effect, is beneficial to energy conservation and emission reduction of buildings, and improves indoor comfort.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the polyurethane heat-insulating and sound-insulating material for the rolling gate consists of A, B two components, wherein:
the component A comprises the following components in parts by weight:
the component B is as follows:
polymethylpolyphenyl polyisocyanates.
Wherein:
the polyether polyol is selected from one or more of the following polyether polyols:
polyether polyol A is prepared by taking sucrose or sorbitol and one or two of palm oil, glycerol, propylene glycol or ethylene glycol as a composite initiator and propylene oxide as a polymerization monomer; preferably one or more of monowiry R5118G, R6001C or R4110B;
polyether polyol B is prepared by taking Siek as an initiator and propylene oxide as a polymerization monomer, and has a hydroxyl value of 150-350mg KOH/g and a viscosity of 200-400mpa.s;
polyether polyol C is prepared by taking ethylene glycol or glycerol as an initiator and propylene oxide as a polymerization monomer, EO is blocked, and the hydroxyl value is 100-500mg KOH/g, and one or two of mononoc S320 or S227 are preferred.
Further, the polyether polyol comprises, in parts by weight:
20-25 parts of polyether polyol A;
7-15 parts of polyether polyol B;
5-15 parts of polyether polyol C.
The epoxidized soybean oil polyol is prepared by taking the action ring opening of epoxidized soybean oil and glycerol or ethylene glycol as an initiator and propylene oxide as a polymerization monomer, and is preferably mononocer R9001.
The catalyst is one or more of dimethylcyclohexylamine, trimethylhydroxyethyl propylene diamine, 1,3, 5-tris (dimethylaminopropyl) hexahydrotriazine or 2,4, 6-tris (dimethylaminomethyl) phenol.
The chemical foaming agent is deionized water; the physical foaming agent is one or two of Isopentane (IP), n-pentane (NP) or Cyclopentane (CP).
The foam stabilizer is winning B8544 or B8545.
The viscosity reducer is one or more of diethylene glycol diethyl ether acetate, diethylene glycol monoethyl ether and diethylene glycol monobutyl ether of diethylene glycol monopropyl ether.
The flame retardant is triethyl phosphate (TEP).
The preparation method of the polyurethane heat-insulating sound-insulating material for the rolling gate comprises the following steps:
(1) And (3) preparation of a component A: cooling polyether polyol, epoxidized soybean oil polyol, a flame retardant, a catalyst, a chemical foaming agent, a foam stabilizer and a viscosity reducer, adding a physical foaming agent, stirring for 0.5-1.5 hours, taking out, checking, meeting the set foaming parameters, and barreling for later use;
(2) When in use, the polyurethane heat-insulation sound-insulation material for the rolling gate can be prepared by mixing and foaming the component A and the component B according to the mass ratio of A to B=1:1-1.5.
Compared with the prior art, the invention has the following beneficial effects:
1. the epoxy soybean oil polyol is used, the content of low molecular substances is low, the toughness of foam can be improved, the phenomenon of powder embrittlement in low-temperature use is avoided, and meanwhile, the epoxy soybean oil polyol has good binding force with base materials such as steel plates and aluminum materials. The fatty acid chain in the epoxidized soybean oil polyol provides good compatibility with alkane foaming agents, and is a renewable and degradable product.
2. The glycol ether ester viscosity reducer is adopted in the invention, and has good intersolubility with a system because of the carbon-oxygen-carbon bond contained in the glycol ether ester viscosity reducer as polyether, thus being capable of effectively reducing the viscosity of the system, being beneficial to the infiltration of foam and a base layer and improving the binding power of the foam. Meanwhile, the viscosity reducer is stably existing in a cross-linked network structure of polyurethane, so that the flexibility of the foam can be improved.
3. The invention adopts the polyether polyols S320 and S227, ethylene oxide is added during polymerization, meanwhile, the molecular chain is relatively long, the polyether has high reactivity, and the polyether has good reactivity with isocyanate at low temperature, so that the crisp phenomenon can not occur.
4. The polyurethane foam has better flame retardant property by adopting the Siek initiator polyether and TEP, does not contain halogen, and is environment-friendly.
5. The polyurethane heat-insulating sound-insulating material for the rolling gate has the characteristics of no crispness at low temperature, good fluidity and good flame retardance, is filled in the cavity of the gate sheet of the rolling gate, is simple and easy to operate, does not change the original appearance and the use space of the rolling gate, can improve the heat-insulating and sound-insulating effects of the rolling gate, reduces the overall energy consumption of a building, and has the polyurethane foam density of 40-60kg/m 3 The influence on the whole quality of the rolling gate is small.
Detailed Description
The invention is further illustrated below with reference to examples.
The parts described in the examples below are parts by weight.
Example 1
(1) And (3) preparation of a component A: weighing 15 parts of R5118G, 10 parts of R4110B, 7 parts of Saike polyether polyol (the functionality is 3, the hydroxyl value is 320-340mg KOH/G), 5 parts of S227, 9001 25 parts of epoxy soybean oil polyether polyol, 18 parts of TEP, 1.1 parts of deionized water, 1.6 parts of B8544, 0.3 part of dimethyl cyclohexylamine, 1,3, 5-tris (dimethylaminopropyl) hexahydrotriazine, 0.7 part of 2,4, 6-tris (dimethylaminomethyl) phenol and 3 parts of diethylene glycol diethyl ether acetate, cooling, adding 12.3 parts of IP, stirring for 0.5-1.5 hours, taking out, checking, and satisfying the set foaming parameters to barrel for standby;
(2) The a component and the B component are combined according to a:b=1: and (3) mixing and foaming the polyurethane heat-insulating and sound-insulating material with the mass ratio of 1.5 by a foaming machine to prepare the polyurethane heat-insulating and sound-insulating material for the rolling gate.
Example 2
(1) And (3) preparation of a component A: weighing 10 parts of R6001C 22, 10 parts of Siek polyether polyol (with the functionality of 3 and the hydroxyl value of 320-340mg KOH/g), 320 parts of S7, 9001 24 parts of epoxy soybean oil polyether polyol R9001 24 parts, 13 parts of TEP, 0.6 part of deionized water, 1.5 parts of B8545, 0.2 part of dimethyl cyclohexylamine, 0.8 part of trimethyl hydroxyethyl propylene diamine, 4 parts of 1,3, 5-tris (dimethylaminopropyl) hexahydrotriazine, 2 parts of diethylene glycol monoethyl ether, adding 4 parts of IP 10 parts of CP after cooling, stirring for 0.5-1.5 hours, taking out for inspection, and satisfying the set foaming parameters, thus barreling for standby;
(2) The a component and the B component are combined according to a:b=1: 1.3, mixing and foaming the polyurethane heat-insulating and sound-insulating material by a foaming machine to prepare the polyurethane heat-insulating and sound-insulating material for the rolling gate.
Example 3
(1) And (3) preparation of a component A: weighing 20 parts of R4110B, 15 parts of Siek polyether polyol (with the functionality of 3 and the hydroxyl value of 320-340mg KOH/g), 320 parts of S, 20 parts of epoxy soybean oil polyether polyol R9001 19 parts, 11 parts of TEP, 1 part of deionized water, 2 parts of B8545, 0.5 part of dimethyl cyclohexylamine, 4 parts of 1,3, 5-tris (dimethylaminopropyl) hexahydrotriazine, 4 parts of diethylene glycol diethyl ether acetate and 3 parts of diethylene glycol monobutyl ether, cooling, adding 4 parts of IP 5 NP, stirring for 0.5-1.5 hours, taking out, checking, meeting the set foaming parameters, and barreling for later use;
(2) The a component and the B component are combined according to a:b=1: and (3) mixing and foaming the polyurethane heat-insulating and sound-insulating material by a foaming machine according to the mass ratio of 1, so as to prepare the polyurethane heat-insulating and sound-insulating material for the rolling gate.
Example 4
(1) And (3) preparation of a component A: weighing 10 parts of Siek polyether polyol (with the functionality of 3 and the hydroxyl value of 320-340mg KOH/G), 10 parts of S227, R9001 21 parts of epoxy soybean oil polyether polyol, 13 parts of TEP, 0.9 part of deionized water, 1.7 parts of B8544, 0.8 part of trimethyl hydroxyethyl propylene diamine, 0.9 part of 1,3, 5-tris (dimethylaminopropyl) hexahydrotriazine, 0.7 part of 2,4, 6-tris (dimethylaminomethyl) phenol, 2 parts of diethylene glycol monopropyl ether and 4 parts of diethylene glycol monobutyl ether, adding 10 parts of NP 2 parts of CP after cooling, stirring for 0.5-1.5 hours, taking out, inspecting, and satisfying the set foaming parameters for standby;
(2) The a component and the B component are combined according to a:b=1: 1.2, mixing and foaming the materials by a foaming machine to prepare the polyurethane heat-insulating and sound-insulating material for the rolling gate.
Comparative example 1
(1) And (3) preparation of a component A: weighing 25 parts of R5118G, 30 parts of R4110B, 7 parts of Saike polyether polyol (with the functionality of 3 and the hydroxyl value of 320-340mg KOH/G), 18 parts of TEP, 1.1 parts of deionized water, 1.6 parts of B8544, 0.3 part of dimethylcyclohexylamine, 0.7 part of 1,3, 5-tris (dimethylaminopropyl) hexahydrotriazine, 3 parts of 2,4, 6-tris (dimethylaminomethyl) phenol and 3 parts of diethylene glycol diethyl ether acetate, cooling, adding 12.3 parts of IP, stirring for 0.5-1.5 hours, taking out, checking, meeting the set foaming parameters, and barreling for later use;
(2) The a component and the B component are combined according to a:b=1: and (3) mixing and foaming the polyurethane heat-insulating and sound-insulating material with the mass ratio of 1.5 by a foaming machine to prepare the polyurethane heat-insulating and sound-insulating material for the rolling gate.
Comparative example 2
(1) And (3) preparation of a component A: weighing 29 parts of R6001C, 10 parts of Siek polyether polyol (with the functionality of 3 and the hydroxyl value of 320-340mg KOH/g), 9001 24 parts of epoxy soybean oil polyether polyol R9001 24 parts, 13 parts of TEP, 0.6 part of deionized water, 1.5 parts of B8545, 0.2 part of dimethyl cyclohexylamine, 0.8 part of trimethyl hydroxyethyl propylene diamine, 0.9 part of 1,3, 5-tris (dimethylaminopropyl) hexahydrotriazine, 4 parts of diethylene glycol monoethyl ether and 2 parts of diethylene glycol monopropyl ether, cooling, adding 10 parts of IP (CP) 4 parts, stirring for 0.5-1.5 hours, taking out, checking, meeting the set foaming parameters, and barreling for standby;
(2) The a component and the B component are combined according to a:b=1: 1.3, mixing and foaming the polyurethane heat-insulating and sound-insulating material by a foaming machine to prepare the polyurethane heat-insulating and sound-insulating material for the rolling gate.
Foam density is referred to GB/T6343, compression strength is referred to GB/T8813, thermal conductivity is referred to GB/T3399, oxygen index is referred to GB/T2406.2, viscosity is referred to GB/T22235 2008, rotational viscometer method is used for testing, and foam state is crisp at low temperature, and observation method is used for testing and comparison. Method for testing adhesion to substrate, polyurethane foam and aluminum sheet adhesion, expressed in tensile force, aluminum sheet dimensions 5cm long by 5cm wide by 1mm thick
TABLE 1 results of Performance test of polyurethane foams prepared in examples 1-4 and comparative examples 1-2
The polyurethane material for the rolling gate, which is prepared by the embodiments 1-4, has the characteristics of low heat conductivity coefficient, no crispness at low temperature, good flame retardance and high bonding strength with a base material. As can be seen from a combination of example 1 and comparative example 1, the foam is more brittle at low temperatures and is substantially tack-free to the substrate when the combined polyether is not added with the epoxidized soybean oil polyol and the EO-capped polyether polyol S320 or S227; when the polyether polyols of S320 and S227 are not added to the combined polyether, the adhesion of the foam to the substrate is poor, but the foam is not substantially brittle. The result shows that the epoxy soybean oil polyol has great improvement on the crisp condition of the foam at low temperature, and the EO-capped polyether polyol can further improve the bonding strength of the foam and the substrate.
Of course, the foregoing is merely preferred embodiments of the present invention and is not to be construed as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and those skilled in the art will appreciate that the present invention is capable of equally varying and improving within the spirit and scope of the present invention.

Claims (5)

1. A polyurethane heat-insulating sound-insulating material for a rolling gate is characterized in that: comprises A, B two components, wherein: the component A comprises the following components in parts by weight:
37-50 parts of polyether polyol;
19-25 parts of epoxidized soybean oil polyol;
11-18 parts of flame retardant;
0.6-1.1 parts of chemical foaming agent;
9-14 parts of physical foaming agent;
1.5-2 parts of foam stabilizer;
1-2.5 parts of catalyst;
3-7 parts of viscosity reducer;
the component B is as follows:
polymethylpolyphenyl polyisocyanates;
the polyether polyol comprises the following components in parts by weight:
20-25 parts of polyether polyol A;
7-15 parts of polyether polyol B;
5-15 parts of polyether polyol C;
the polyether polyol A is one or more of R5118G, R6001C or R4110B of Shandong Yinuo New Material Co., ltd, and is prepared by taking sucrose or sorbitol and one or two of palm oil, glycerol, propylene glycol or ethylene glycol as a composite initiator and propylene oxide as a polymerization monomer;
the polyether polyol B is prepared by taking Siek as an initiator and propylene oxide as a polymerization monomer, and has a hydroxyl value of 150-350mgKOH/g and a viscosity of 200-400mpa.s;
the polyether polyol C is one or two of S320 and S227 of Shandong Yinuo New Material Co., ltd, is prepared by taking ethylene glycol or glycerol as an initiator and propylene oxide and ethylene oxide as polymerization monomers, and is subjected to EO end sealing, and has a hydroxyl value of 100-500mgKOH/g;
the epoxidized soybean oil polyol is R9001 of New material limited of Nanoper, shandong, and is prepared by taking epoxidized soybean oil and glycerol or ethylene glycol as ring opening initiators and propylene oxide as a polymerization monomer;
the chemical foaming agent is deionized water; the physical foaming agent is one or two of isopentane, n-pentane or cyclopentane;
the viscosity reducer is one or more of diethylene glycol diethyl ether acetate, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether or diethylene glycol monobutyl ether.
2. The polyurethane heat and sound insulating material for a roll-up door according to claim 1, wherein: the catalyst is one or more of dimethylcyclohexylamine, trimethylhydroxyethyl propylene diamine, 1,3, 5-tris (dimethylaminopropyl) hexahydrotriazine or 2,4, 6-tris (dimethylaminomethyl) phenol.
3. The polyurethane heat and sound insulating material for a roll-up door according to claim 1, wherein: the foam stabilizer is winning B8544 or B8545.
4. The polyurethane heat and sound insulating material for a roll-up door according to claim 1, wherein: the flame retardant is triethyl phosphate.
5. A method for preparing the polyurethane heat-insulating and sound-insulating material for the rolling gate, which is characterized in that: the method comprises the following steps:
(1) And (3) preparation of a component A: cooling polyether polyol, epoxidized soybean oil polyol, a flame retardant, a catalyst, a chemical foaming agent, a foam stabilizer and a viscosity reducer, adding a physical foaming agent, stirring for 0.5-1.5 hours, taking out, checking, meeting the set foaming parameters, and barreling for later use;
(2) When in use, the polyurethane heat-insulation sound-insulation material for the rolling gate can be prepared by mixing and foaming the component A and the component B according to the mass ratio of A to B=1:1-1.5.
CN202111637042.2A 2021-12-29 2021-12-29 Polyurethane heat-insulating sound-insulating material for rolling gate and preparation method thereof Active CN114349927B (en)

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